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US 6,554,670 B1Granted
Method for capping lamps
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorGunji Eto
Life of this patent
Estimating the term…
Abstract
A holder having a funnel-shaped portion is provided above an eyelet, and a conductive metal piece is supplied to the vicinity of a portion at which plasma arc welding is performed in the funnel-shaped portion. The conductive metal piece is fused together by plasma arc welding so that the hole of the eyelet is closed completely. Thus, the lead wire can be connected firmly. Therefore, even if the hole diameter of the eyelet is excessively large relative to the diameter of the lead wire, complete closure and sufficient fusion connection can be achieved.
Claims5
A method for capping a lamp comprising:
- drawing out a lead wire from a hole of a base eyelet of a lamp and fusing the eyelet and the lead wire by plasma arc welding, wherein a conductive metal piece is supplied to a vicinity of a portion at which the eyelet and the lead wire are fused, and then plasma arc welding is performed to melt the conductive metal piece together with the lead wire so that the lead wire is connected to the eyelet.
Dependencies are inferred from the claim text.